Sorry about my english level.
I researched so much, and i found that can i use ".htaccess" to get redirection to subdomain folder and this is OK.
In Drupal i need to create a folder for each subdomain in "/sites/sub.example.com/" and copy "default.settings.php" from default folder "/sites/default/default.setting.php" and rename it to "settings.php", after that, enable "$databases" variable in the same file, when it's done, i need to add a wildcard and modify "hosts" file.
Well, i should "automate" all this, but i don't know if it's is more hard because it's important hold the server safety with writing permissions or try another way, someone could advise me.
Im working on OSX and Drupal 7.x (recent release)
Thank you very much.